JezK
Edit File: examples.rb
require 'test/unit' $:.unshift File.expand_path('../../../lib', __FILE__) require 'coderay' class ExamplesTest < Test::Unit::TestCase def test_examples # output as HTML div (using inline CSS styles) div = CodeRay.scan('puts "Hello, world!"', :ruby).div assert_equal <<-DIV, div <div class="CodeRay"> <div class="code"><pre>puts <span style="background-color:hsla(0,100%,50%,0.05)"><span style="color:#710">"</span><span style="color:#D20">Hello, world!</span><span style="color:#710">"</span></span></pre></div> </div> DIV # ...with line numbers div = CodeRay.scan(<<-CODE.chomp, :ruby).div(:line_numbers => :table) 5.times do puts 'Hello, world!' end CODE assert_equal <<-DIV, div <table class="CodeRay"><tr> <td class="line-numbers" title="double click to toggle" ondblclick="with (this.firstChild.style) { display = (display == '') ? 'none' : '' }"><pre><a href="#n1" name="n1">1</a> <a href="#n2" name="n2">2</a> <a href="#n3" name="n3">3</a> </pre></td> <td class="code"><pre><span style="color:#00D">5</span>.times <span style="color:#080;font-weight:bold">do</span> puts <span style="background-color:hsla(0,100%,50%,0.05)"><span style="color:#710">'</span><span style="color:#D20">Hello, world!</span><span style="color:#710">'</span></span> <span style="color:#080;font-weight:bold">end</span></pre></td> </tr></table> DIV # output as standalone HTML page (using CSS classes) page = CodeRay.scan('puts "Hello, world!"', :ruby).page assert_match <<-PAGE, page <body> <table class="CodeRay"><tr> <td class="line-numbers" title="double click to toggle" ondblclick="with (this.firstChild.style) { display = (display == '') ? 'none' : '' }"><pre> </pre></td> <td class="code"><pre>puts <span class="string"><span class="delimiter">"</span><span class="content">Hello, world!</span><span class="delimiter">"</span></span></pre></td> </tr></table> </body> PAGE # keep scanned tokens for later use tokens = CodeRay.scan('{ "just": "an", "example": 42 }', :json) assert_kind_of CodeRay::TokensProxy, tokens assert_equal ["{", :operator, " ", :space, :begin_group, :key, "\"", :delimiter, "just", :content, "\"", :delimiter, :end_group, :key, ":", :operator, " ", :space, :begin_group, :string, "\"", :delimiter, "an", :content, "\"", :delimiter, :end_group, :string, ",", :operator, " ", :space, :begin_group, :key, "\"", :delimiter, "example", :content, "\"", :delimiter, :end_group, :key, ":", :operator, " ", :space, "42", :integer, " ", :space, "}", :operator], tokens.tokens # produce a token statistic assert_equal <<-STATISTIC, tokens.statistic Code Statistics Tokens 26 Non-Whitespace 15 Bytes Total 31 Token Types (7): type count ratio size (average) ------------------------------------------------------------- TOTAL 26 100.00 % 1.2 delimiter 6 23.08 % 1.0 operator 5 19.23 % 1.0 space 5 19.23 % 1.0 key 4 15.38 % 0.0 :begin_group 3 11.54 % 0.0 :end_group 3 11.54 % 0.0 content 3 11.54 % 4.3 string 2 7.69 % 0.0 integer 1 3.85 % 2.0 STATISTIC # count the tokens assert_equal 26, tokens.count # produce a HTML div, but with CSS classes div = tokens.div(:css => :class) assert_equal <<-DIV, div <div class="CodeRay"> <div class="code"><pre>{ <span class="key"><span class="delimiter">"</span><span class="content">just</span><span class="delimiter">"</span></span>: <span class="string"><span class="delimiter">"</span><span class="content">an</span><span class="delimiter">"</span></span>, <span class="key"><span class="delimiter">"</span><span class="content">example</span><span class="delimiter">"</span></span>: <span class="integer">42</span> }</pre></div> </div> DIV # highlight a file (HTML div); guess the file type base on the extension assert_equal :ruby, CodeRay::FileType[__FILE__] # get a new scanner for Python python_scanner = CodeRay.scanner :python assert_kind_of CodeRay::Scanners::Python, python_scanner # get a new encoder for terminal terminal_encoder = CodeRay.encoder :term assert_kind_of CodeRay::Encoders::Terminal, terminal_encoder # scanning into tokens tokens = python_scanner.tokenize 'import this; # The Zen of Python' assert_equal ["import", :keyword, " ", :space, "this", :include, ";", :operator, " ", :space, "# The Zen of Python", :comment], tokens # format the tokens term = terminal_encoder.encode_tokens(tokens) assert_equal "\e[1;31mimport\e[0m \e[33mthis\e[0m; \e[37m# The Zen of Python\e[0m", term # re-using scanner and encoder ruby_highlighter = CodeRay::Duo[:ruby, :div] div = ruby_highlighter.encode('puts "Hello, world!"') assert_equal <<-DIV, div <div class="CodeRay"> <div class="code"><pre>puts <span style="background-color:hsla(0,100%,50%,0.05)"><span style="color:#710">"</span><span style="color:#D20">Hello, world!</span><span style="color:#710">"</span></span></pre></div> </div> DIV end end